The Best Muscle Building Supplements

Working hard at the gym and keeping your diet tight are the cornerstones of any muscle building regimen, but adding in targeted supplements can also help you to maximize your gains.

Finding the best muscle building supplement for your wellness regimen means reading reviews, studying product features, and diving into the ins and outs of available formulas and configurations. With the right muscle building supplement, you can reap the full rewards of your diet and exercise program.

We reviewed dozens of muscle building supplements to identify the best of the best, based on Amazon reviews, how well they performed in tests, cost, and other considerations. We narrowed our search down to 5 of the top-rated muscle building supplements people can purchase to ensure they’re maximizing their gains.

To make sure you don’t suffer pain while you’re strength building with your muscles, you may want to preemptively begin adding joint supplements into your regiment, too. For a bit of proactive research, check out The Best Joint Supplements.

Our Top Pick
Crazy Bulk

100% legal bodybuilding supplements for bulking, cutting and strength.

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We’ve identified Crazy Bulk as the best muscle building supplement out there. With a blend of natural ingredients that safely boost testosterone levels, this muscle building supplement is one that will keep your body in tip top shape. These benefits allow you to reap the most from your hard work at the gym.

Legal Disclaimer

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

The 5 Top-Rated Muscle Building Supplements

Editor's PicksBrandRating
Best OverallCrazy Bulk4.5
Runner UpTestoGen4.0
Best Budget BuyD.Bal.Max3.75
Best Anabolic Support ComplexTestofuel4.5
Best Natural Testosterone BoosterPrime Male 3.5

*Ratings are from Amazon at the time of publication and can change

Our Top Pick: Crazy Bulk

Crazy Bulk took the top spot on our list of the best muscle building supplements, and offers a range of targeted bodybuilding supplements that are based on your fitness goals, and are all 100% legal. Crazy Bulk counts professional bodybuilders and fitness coaches among its clients, and offers free workout guides for its customers. They offer targeted single products or blended “stacks” of complementing formulas.

Those who purchased and reviewed this muscle building supplement appreciated that it offered noticeable improvements to their strength in as little as 2 weeks. Many users also had noticeable fat loss, and commented that Crazy Bulk made them feel more energized and with improved stamina at the gym. People liked that the website clearly listed ingredients, and found ordering easy.

At a cost of about $80/bottle or about $250/stack, it doesn’t come cheap, but the quality ingredients associated with the brand, as well as the ease of use more than justifies that price. It has an average rating of about 4/5 stars on several popular bodybuilding forums with dozens of people reviewing it, which we think goes a long way in convincing people to make the investment.

Crazy Bulk Key Features:

  • Every third item is free
  • Free shipping anywhere in the world
  • Complementary apparel available

Our Runner Up Pick: Crazy Bulk

Our Runner Up Pick
TestoGen

Contains natural ingredients to boost testosterone easily and safely.

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TestoGen took the runner up spot on our list of the best muscle building supplements, and contains a blend of natural ingredients that help to quickly and safely boost testosterone levels. The makers of TestoGen claim that this can help users with increasing strength and stamina, improving focus, decreasing irritability, fatigue, and excess body fat, in addition to improving muscle tone and libido. It contains no artificial ingredients, and comes in a capsule format.

Those who purchased and reviewed this muscle building supplement appreciated that it helped them see noticeable improvements in strength, and the majority said they were able to lose weight with this supplement. People gained lean muscle while using this supplement, and liked that there was plenty of scientific testing done on the product.

With a price tag of around $70/month supply, it doesn’t come cheap, but the quality ingredients associated with the brand, as well as the ease of use more than justifies that price. You can save even more if you purchase in bulk. It has an average rating of 4.5/5 stars on several popular bodybuilding forums with dozens of people reviewing it, which we think goes a long way in convincing people to make the investment.

TestoGen Key Features:

  • Each bottle contains 120 capsules
  • Includes a 100% money-back guarantee
  • Free shipping

Best Budget Pick: D.Bal.Max

Best for Budget
D.Bal.Max

Triple action formula offers maximum results.

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D.Bal.Max is an excellent choice for those who want a muscle building supplement that won’t break the bank. It provides many of the benefits of Dianabol (the brand name for the anabolic steroid metandienone) without the harmful effects. It increases protein synthesis to help users build stronger and larger muscles, while reducing serotonin levels and increasing ATP content to decrease the perception of fatigue during workouts.

Those who purchased and reviewed this muscle building supplement appreciated that the dosing of ingredients was small enough that negative side effects were not noticeable, but large enough that it still provided noticeable results at the gym. People liked the plant-based ingredients, had noticeable improvements in muscle bulk, and that there were studies to back it up.

With a price tag of approximately $90/monthly supply, this muscle building supplement is a solid choice for those looking for a muscle building supplement option on a budget, but only if you purchase their bulk program. The 3- and 6-month options both bring the cost down to about $60/month. It has an average rating of about 3.5-4/5 stars on several popular bodybuilding forums with dozens of people reviewing it, which we think goes a long way in convincing people to make the investment.

D.Bal.Max Key Features:

  • Formula is 100% legal
  • Boosts testosterone and IGF-1 levels
  • Manufactured in a cGMP certified, FDA inspected facility

Best Anabolic Support Complex: Testofuel

Best Anabolic Support Complex
Testofuel

Designed to naturally increase testosterone levels.

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Testofuel is a great option for those looking for an anabolic support complex, and helps to boost muscle growth, increase strength, reduce body fat, and improve both mood and self-esteem. Testofuel counts Mr. Olympia Master, Robby Robinson as a customer. It features a blend of D-Aspartic acid, vitamin D, and oyster extract that help to elevate and support anabolic hormone levels. The company ships worldwide, and offers a 90-day money-back guarantee on all orders.

Those who purchased and reviewed this muscle building supplement appreciated that it offered noticeable gains in a relatively short time frame, without the harmful effects of anabolic steroids. People commented that the packaging was good, and that even though it was expensive, it was worth it for the results it offered.

With a price tag of around $65/box, it doesn’t come cheap, but the quality ingredients and scientific research associated with the brand, as well as the ease of use more than justifies that price. It has an average rating of about 4.5/5 stars on several popular bodybuilding forums with dozens of people reviewing it, which we think goes a long way in convincing people to make the investment.

Testofuel Key Features:

  • Contains all-natural ingredients
  • Each bottle contains 120 capsules
  • Manufactured in a cGMP certified, FDA inspected facility

Best Natural Testosterone Booster: Prime Male

Natural Testosterone Booster
Prime Male

Enjoy male potency and vitality once again.

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Prime Male is a good choice for those who want a natural testosterone booster. The manufacturer claims that it helps build lean muscle, improve libido, drop excess weight, reduce fatigue, and improve mood and confidence. It contains a blend of 12 natural ingredients that help to boost testosterone levels, and each one is backed by extensive clinical research, in the optimal daily dosages. It can reportedly boost testosterone levels up to 42% in just 12 days.

Those who purchased and reviewed this muscle building supplement appreciated that it provided noticeable improvements in mass in just a few short weeks. Besides muscle gains, men also said this supplement helped them to improve their libido.

At a cost of about $69/bottle, it doesn’t come cheap, but the quality craftsmanship associated with the brand, as well as the ease of use more than justifies that price. It has an average rating of about 3.5/5 stars on several popular bodybuilding forums with dozens of people reviewing it, which we think goes a long way in convincing people to make the investment.

Prime Male Key Features:

  • Each bottle contains 120 capsules
  • Includes a 90-day money-back guarantee
  • Worldwide shipping with tracking

Who Should Buy a Muscle Building Supplement

A muscle building supplement is an ideal choice for those who are looking to maximize their gains from time spent at the gym. Because most supplements are designed specifically with men in mind, their ingredients will be different than what women need. There are targeted weight loss supplements specifically for women to help with their needs.

If you’re spending plenty of time at the gym with a progressive strength training program and not getting the results you’re expecting, a muscle building supplement might be ideal for your needs. Their targeted blend of ingredients help improve protein synthesis, speed recovery, and normalize hormone levels for maximum gains.

Unlike illegal anabolic steroids, most muscle building supplements contain ingredients in small enough doses that they aren’t harmful for the majority of users, and have plenty of scientific research and testing to back up their claims.

If you want to help the muscle building process, you may want to cut back on sugar, and if you need help with that, then you should definitely check out How To Wean Off Sugar: A Complete Guide On How To Wean Yourself Off Sugar.

Our Top Pick
Crazy Bulk

100% legal bodybuilding supplements for bulking, cutting and strength.

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Important Features to Consider

Not all muscle building supplements are created equal. A muscle building supplement should be effective and safe. Here’s what to consider when evaluating the options in search of the best muscle building supplement for your needs:

  • Type. Muscle building supplements are available in single ingredient formulas and blends. Single formulas have just one main ingredient, while blends contain a “stack” or mix of ingredients. Depending on your overall health, budget, and goals, you may prefer to go with one or the other.
  • Format. Another important consideration when it comes to choosing the best muscle building supplement is the format. There are powders, bars, shakes, and capsules available, but all help achieve the same end result — increased muscle mass.
  • Ingredients. Certain ingredients have been shown to help with muscle building, including: protein, creatine, branched-chain amino acids (BCAAs), beta-alanine, Citrulline Malate (L-Citrulline), zinc, magnesium, vitamin B6, tribulus terrestris, L-Isoleucine, L-Valine, L-Leucine, D-aspartic acid, and L-Arginine. Look for these ingredients on labels to ensure a quality product.
  • Labels. Keep in mind that most over the counter muscle building supplements are not regulated by the FDA. This leaves the burden of ensuring safety on the consumer, so carefully check information of all ingredients of a supplement before purchasing. Also look into the reliability of the manufacturer before buying any supplement. Quality manufacturers should list all ingredients and have access to lab tests and studies that show their products are safe and effective.
  • Price point. Finally, consider how much you are willing to spend on a muscle building supplement. Muscle building supplements vary in price from $20-$100/month or more.

Frequently Asked Questions

What is a muscle building supplement and how does it work?

A muscle building supplement is a dietary supplement designed to help improve muscle size and strength. They work by improving protein synthesis, speeding up recovery, and normalizing hormone levels for maximum gains.

What are the side effects of muscle building supplements?

The main side effects of muscle building supplements are increased strength and stamina, improved focus, decreased irritability, fatigue, and excess body fat, in addition to improved muscle tone and libido. Increased muscle mass is another positive side effect of taking a muscle building supplement regularly. Some users report stomach pain, nausea, diarrhea, muscle cramping, and water retention when taking muscle building supplements.

How long should you take a muscle building supplement?

Any muscle building supplement takes about 2-4 weeks to start providing noticeable results, so you’ll want to take it for at least that length of time. The rule of thumb is to start with a 3-month program and see how you feel and what sort of results you have, and go from there. As long as you aren’t experiencing any negative side effects and see your healthcare provider regularly, you should be OK to take a muscle building supplement for about a year or so without issue.

How can I build muscle fast?

Unfortunately, there is no real way to build muscle fast. It requires consistent and progressive strength training, combined with a healthy diet and adequate rest in order to see results. Hydration and stress management are also important components of muscle building that are sometimes overlooked. Supplementing with the right products can help improve your efforts, and tracking your efforts is also important for acknowledging progress.

Other Muscle Building Supplements We Reviewed

Our Top Pick
Crazy Bulk

100% legal bodybuilding supplements for bulking, cutting and strength.

Check Price

We looked at 20 other muscle building supplements. Even though they didn’t make our 5 best muscle building supplements list, they’re the best of the rest and each is still a great option to help maximize your gains at the gym. The information you’ll need to compare each one is included with the listing.

Muscle Building Supplement Powders

Legion Recharge Post Workout Supplement

Legion Recharge Post Workout Supplement

This muscle building supplement powder boasts the inclusion of creatine monohydrate, and can be stacked with other supplements in your pre- or post-workout beverage for added convenience.

Key Features:

  • Available in a selection of flavors
  • Contains 60 servings per container
  • Naturally sweetened

Cost: $35

MP Essentials Micronized Creatine

MP Essentials Micronized Creatine

This muscle building supplement powder boasts micronized creatine powder for improved performance and recovery. Its unflavored formula can be stacked with other workout supplements.

Key Features:

  • Available in a choice of sizes
  • Contains 60 servings per container
  • Includes a money-back guarantee

Cost: $11

Optimum Nutrition Gold Standard 100% Whey Protein Powder

Optimum Nutrition Gold Standard 100% Whey Protein Powder

This muscle building supplement powder boasts 24 grams of protein per serving, along with 4 grams of glutamine, and 5.5 grams of BCAAs.

Key Features:

  • Available in a choice of sizes
  • Available in a selection of flavors
  • Contains 71 servings per container

Cost: $55

ProSupps Mr. Hyde NitroX Pre-Workout Powder Energy Drink

ProSupps Mr. Hyde NitroX Pre-Workout Powder Energy Drink

This muscle building supplement powder boasts a blend of a caffeine matrix, TeaCrine, Creatine HCL, and Nitrosigine to help deliver improved energy, power, and strength at the gym.

Key Features:

  • Available in a choice of sizes
  • Available in a selection of flavors
  • 30-day satisfaction guarantee

Cost: $24

Muscle Milk Pro Series Protein Powder

Muscle Milk Pro Series Protein Powder

This muscle building supplement powder boasts a whopping 50 grams of protein per serving, and is an excellent source of 20 vitamins and minerals that help to promote optimal health.

Key Features:

  • Contains 60 servings per container
  • Just 3 grams of sugar per serving
  • Soy- and gluten-free

Cost: $28

Dymatize Elite 100% Micellar Casein

Dymatize Elite 100% Micellar Casein

This muscle building supplement powder boasts a micellar casein protein that helps provide muscles with the essential amino acids they need to grow and recover after intense workouts.

Key Features:

  • Available in a choice of sizes
  • Available in a selection of flavors
  • Contains 25g protein, 5.4g BCAAs, and 2.3g leucine per serving

Cost: $27

Muscle Feast Creapure Creatine Monohydrate Powder

Muscle Feast Creapure Creatine Monohydrate Powder

This muscle building supplement powder can be used either pre- or post-workout, and is 99.9% pure. The unflavored formula can easily be stacked with your other favorite products.

Key Features:

  • Available in a choice of sizes
  • Available in a selection of flavors
  • Contains 55 servings per container

Cost: $14

Whey Protein Powder Isolate by BulkSupplements

Whey Protein Powder Isolate by BulkSupplements

This muscle building supplement powder offers a lab-tested whey protein isolate that boasts a complete amino acid profile to help build muscle while burning fat.

Key Features:

  • Available in a choice of sizes
  • Contains 16 servings per container
  • Free from corn, gluten, yeast, and added sugar

Cost: $17

Muscle Building Supplement Capsules

EP1LOGUE Muscle Builder & Epicatechin Supplement

EP1LOGUE Muscle Builder & Epicatechin Supplement

These muscle building supplement capsules contain Epicatechin PhytoFUSE to help increase muscle size and differentiation, and aid in protein synthesis.

Key Features:

  • Contains 60 capsules
  • Stimulant-free formula
  • Made in the USA

Cost: $47

Ultimate Testo Explosion Vitality – Premium Health Booster

Ultimate Testo Explosion Vitality - Premium Health Booster

These muscle building supplement capsules boast a formula that helps to accelerate fat loss for a more defined physique, and helps to boost testosterone levels.

Key Features:

  • Contains 60 capsules
  • Made in the USA
  • Manufactured in a cGMP certified facility

Cost: $60

BioOptimal Collagen Pills

BioOptimal Collagen Pills

These muscle building supplement capsules boast a blend of hydrolyzed collagen peptides that help support healthy skin, hair, nails, muscles, and joints for both men and women.

Key Features:

  • Free of gluten, sugar, and growth hormone
  • Contains 180 capsules
  • Includes a 90-day money-back guarantee

Cost: $18

Caliber Labs Testosterone Booster

Caliber Labs Testosterone Booster

These muscle building supplement capsules boast a blend of natural, testosterone-boosting ingredients, and help to improve stamina, self-esteem, and performance at the gym and in the bedroom.

Key Features:

  • Manufactured in a cGMP certified, FDA-inspected facility
  • Contains 90 capsules
  • Made in the USA

Cost: $17

Bucked Up Phosphatidic Acid

Bucked Up Phosphatidic Acid

These muscle building supplement capsules improved results in a double blind study, and have been clinically graded, tested, and dosed for safety and efficacy.

Key Features:

  • Contains 120 capsules
  • Manufactured in a cGMP certified facility
  • Made in the USA

Cost: $70

Myogenix Joint And Tissue Joint And Tissue

Myogenix Joint And Tissue Joint And Tissue

These muscle building supplement capsules boast a blend of ingredients that helps support muscle and joint recovery, and provides noticeable improvements in just several days.

Key Features:

  • Contains 240 capsules
  • Made in the USA
  • Clinically-proven ingredients

Cost: $43

Skin Care Solutions Nitric Oxide Muscle Pump

Skin Care Solutions Nitric Oxide Muscle Pump

These muscle building supplement capsules boast a formula that helps to improve cardiovascular endurance while reducing recovery time, and come with a money-back guarantee.

Key Features:

  • Contains 90 capsules
  • Made in the USA
  • Manufactured in a cGMP certified facility

Cost: $25

Megadrox Premium Workout Supplement

Megadrox Premium Workout Supplement

These muscle building supplement capsules contain L-Arginine and L-Citrulline to help improve circulation and protein synthesis in order to build lean muscle.

Key Features:

  • Available in single or multi-packs
  • Contains 60 capsules
  • Includes a satisfaction guarantee

Cost: $86

LEAN Nutraceuticals Natural Testosterone Booster

LEAN Nutraceuticals Natural Testosterone Booster

These muscle building supplement capsules boast a formula that was developed in conjunction with a medical doctor, and contains a blend of high quality ingredients to boost testosterone levels.

Key Features:

  • Contains 180 capsules
  • Natural ingredients
  • Third party tested for safety

Cost: $39

Nique Nutrition Premium L-Arginine Dietary Supplement

Nique Nutrition Premium L-Arginine Dietary Supplement

These muscle building supplement capsules boast contain L-Arginine, which helps to increase metabolism, energy levels, and workout performance. They also help to improve sexual function.

Key Features:

  • Contains 60 capsules
  • Includes a money-back guarantee
  • Take before a meal

Cost: $40

Muscle Building Supplement Sprays

Safe Anabolic Sciences Anabolic Pro Stack

Safe Anabolic Sciences Anabolic Pro Stack

This muscle building supplement spray boasts formulas that help improve muscle building and recovery, and is licensed and endorsed by several professional bodybuilders.

Key Features:

  • Enough for a 3-month supply
  • Fast absorbing
  • Manufactured in an FDA-inspected facility

Cost: $295

Muscle Force Extreme

Muscle Force Extreme

This muscle building supplement spray boasts a proprietary formula designed to help increase strength, lean muscle, and endurance, and contains L-Arginine, Bulgarian tribulus, and niacin.

Key Features:

  • Available in single or multi-packs
  • Manufactured in a cGMP certified facility
  • Includes a 60-day money-back guarantee

Cost: $42

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